Answer
352.5k+ views
Hint: This type of equation involves the value of trigonometric functions at specific angles. This can be solved by either finding the value of the first term or the last term i.e by finding the value of either $ \cos 1^\circ $ or $ \cos 90^\circ $ .
Complete step-by-step answer:
To solve the question,
$ \Rightarrow \cos 1\cos 2\cos 3.........\cos 90^\circ . $
But, we know the value of last term,
$ \Rightarrow \cos 90^\circ = 0 $
So the equation becomes,
$ \Rightarrow \cos 1\cos 2\cos 3......... \times \left( 0 \right) $
So the whole equation multiplied by $ 0 $ becomes,
$ \Rightarrow 0. $
Therefore the solution of $ \cos 1\cos 2\cos 3.........\cos 90^\circ $ is $ 0. $
So, the correct answer is “0”.
Note: $ \Rightarrow $ Trigonometry is one of the important branches in the history of mathematics. Here, we will study the relationship between the sides and angles of a right-angled triangle. The basics of trigonometry define three primary functions which are sine, cosine and tangent.
$ \Rightarrow $ So, this was one of the cosine problems, and we can see the problems like in sine and tangent angles also.
$ \Rightarrow $ Its applications are in various fields like oceanography, seismology, meteorology, physical sciences, astronomy, acoustics, navigation, electronics, etc.
Complete step-by-step answer:
To solve the question,
$ \Rightarrow \cos 1\cos 2\cos 3.........\cos 90^\circ . $
But, we know the value of last term,
$ \Rightarrow \cos 90^\circ = 0 $
So the equation becomes,
$ \Rightarrow \cos 1\cos 2\cos 3......... \times \left( 0 \right) $
So the whole equation multiplied by $ 0 $ becomes,
$ \Rightarrow 0. $
Therefore the solution of $ \cos 1\cos 2\cos 3.........\cos 90^\circ $ is $ 0. $
So, the correct answer is “0”.
Note: $ \Rightarrow $ Trigonometry is one of the important branches in the history of mathematics. Here, we will study the relationship between the sides and angles of a right-angled triangle. The basics of trigonometry define three primary functions which are sine, cosine and tangent.
$ \Rightarrow $ So, this was one of the cosine problems, and we can see the problems like in sine and tangent angles also.
$ \Rightarrow $ Its applications are in various fields like oceanography, seismology, meteorology, physical sciences, astronomy, acoustics, navigation, electronics, etc.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)